1 preparing for the new geospatial metadata horizon esri user conference san diego, ca ● july 9,...
DESCRIPTION
3 What is the status of the ISO metadata standard? ISO design only approved by ISO ISO implementation draft submitted June 2003 ISO 19103, 19109, elements defined externally to ISO 19115/10139 e.g measurements and feature/attribute schemas most in draft form CSDGM remains the US geospatial metadata standardTRANSCRIPT
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Preparing for the NewGeospatial Metadata
Horizon
ESRI User ConferenceSan Diego, CA ● July 9, 2003
Lynda WayneFederal Geographic Data Committee
GeoMaxim
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Why change our standard?
Politically… responsible member of international geospatial
community
Technically… improved normalization enhanced capabilities interoperability
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What is the status of the ISO metadata standard? ISO 19115
design only approved by ISO
ISO 19139 implementation draft submitted June 2003
ISO 19103, 19109, 19111 elements defined externally to ISO 19115/10139 e.g measurements and feature/attribute schemas most in draft form
CSDGM remains the US
geospatial metadata standard
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What’s new with ISO metadata?
1. Content CSDGM similar and new elements domains and conditionality core metadata
2. Format UML / XML Multi-level metadata
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ISO Metadata: New ContentCSDGM Similar Elements
samemetadata standard name
new terminology and definitionsCSDGM = Originator ISO = Responsible partyw/ role = originator
custodianownerpublisher….
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ISO Metadata: New Content
New (non-CSDGM) Elements International elements
Data / Metadata language Extended elements
CSDGM = geographic and temporal extentISO = geographic, temporal, and vertical extent
Lacking elementsISO Topic category – 19 standardized subject categories to facilitate data discovery
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ISO Metadata: New ContentTopic Categories – select one or moreboundaries oceans transportation economy societyelevationstructureenvironment geoscientific_informationhealth imagery_basemaps_earthcoverinland waters planning_cadastre location utilities_telecommunicationsclimatology_meteorology_atmosphere
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ISO Metadata: New Content
Domains and Conditionality Fixed domains and code lists in place of free
textResponsible party - role and Topic categories represented as numeric codes
role = originator (006) topic category = transportation (018)
Fewer mandatory elementsCore contains only 7 mandatory elements
More optional elements
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ISO Core Metadata 22 basic metadata elements be that must be
maintained for a dataset includes mandatory, conditional, and optional
elements all national profiles of ISO must include the
core
ISO Metadata: New Content
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Building the national profile
ISO Metadata: New Content
core elements extensions
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mandatory elements: CSDGMDataset title TitleDataset reference date Publication_DateAbstract AbstractMetadata point of contact Metadata_ContactMetadata date stamp Metadata_Date
Dataset languagevirtual default for US data setsDataset topic category
ISO Metadata: Core Metadata
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conditional elements: CSDGMGeographic location Bounding_Coordinates
- if documenting a data set
Dataset character setMetadata character set
- if other than UCS
Metadata language- if not encoded
ISO Metadata: Core Metadata
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optional elements: CSDGMDataset responsible party OriginatorSpatial resolution (for raster) Abscissa/Ordinate Resolut.Distribution format Format_NameAdditional extent-temporal Time_Period_of_ContentSpatial representation Direct_Spatial_ReferenceReference system Horizontal_Coord_SystemLineage Lineage
ISO Metadata: Core Metadata
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optional elements: CSDGMOnline resource Online_Linkage &Network_Resource_NameMetadata standard name Metadata_Standard_NameMetadata standard version Metadata_Standard_Vers.
Metadata file identifierfilename for metadata record
Spatial resolution (for vector)e.g. equivalent scale 1:24,000
ISO Metadata: Core Metadata
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ISO Metadata: New Format
19115 UML Design: entity relationships
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ISO Metadata: New Format
19115 Data Dictionary: content specifications
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19139 XML Schema: metadata record format
ISO Metadata: New Format
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Implications: the good news….XML schema supports consistent and robust implementation via software tools
format and exchange- current implementation via txt, doc, db file, etc- exchange format is txt
internal metadata harvesting and other automated features
ISO Metadata: New Format
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ISO Metadata: New FormatMulti-level metadataMeta can be created for different levels:
Data Series - wetlands Dataset - Paducah wetlands Feature Type - marsh Feature Instance - Mandy’s Marsh Attribute Type - Salinity Attribute Instance - actual % water salinity
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Implications: the bad news….Standard can no longer be ‘read’ by most geospatial data developers
greater dependency on tools lack of direct contact with the standard will be
difficult for some metadata creators, analogous to moving from command line to GUI
ISO Metadata: New FormatISO Metadata: New Format
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What about my legacy metadata?Crosswalks drafted for:
CSDGM Vers. 2.0 Dublin Core, others
Conversion software in development
sponsored by FGDC ESRI and Intergraph/SMMS development partners
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How do I prepare?Now….1. Continue metadata creation using CSDGM vers.2 !!!2. Use ISO-poised software
ESRI ArcCatalog Intergraph / SMMS
3. Add Topic Categories as a custom element or theme keywords with ‘ISO 19115’ as keyword thesaurus
4. Monitor FGDC website for news, materials, and training opportunities
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Soon…5. Participate in FGDC review of crosswalk 6. Participate in INCITS-L1 19139 reviews7. Educate and inform your organization that a migration,
and assistance, is in the future8. Develop a metadata conversion plan using crosswalks
and conversion software9. Adopt ‘CSDGM vers. 3.0’ when finalized
How do I prepare?
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Contact:
Sharon Shin, FGDC Metadata [email protected]
Lynda Wayne, FGDC / GeoMaxim [email protected]
For More Information
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Visit:
FGDC Metadata Website: http://www.fgdc.gov/metadata
ISO 19139 /Crosswalk Effortshttp://metadata.dgiwg.org
For More Information
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What are your ISO metadata questions and concerns?
Discussion
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For more information:
ANSI Review Julie Maitra Binder, FGDC Standards Coordinator
[email protected]://www.fgdc.gov/standards
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For more information:
ISO 19115 to CSDGM Vers. 2.0Conversion Software
Bruce Westcott, SMMS Metadata [email protected]
Crosswalkhttp://ogcengine.nima.mil/metadata/
index.htm
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ISO: Topic Categories
farming health structurebiota imagery locationboundaries military oceanseconomy society elevation environmentatmosphere inland watersgeoscientific planning / cadastretransportation utilities/communications
back
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What’s new with ISO 19115?
New Terminology Replaced terms
Data / Metadata Language Extended elements
Extent: geographic, temporal, vertical Specified elements
Logical Consistency: conceptual, domain, format, topology
Hierarchical elements
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What’s new with ISO 19115?
New Design Method: Object Oriented
Responsible Party
ISO custodian
distributor
contact
processor
PIpublisher
…more
Distribution Contact
Processing Contact
Point of Contact
Metadata Contact
FGDC / CSDGM:
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What is ISO?
International Organisation for Standards International standards organization
- ANSI is US rep to ISO US is one of approximately 92
member nations
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What is the ISO metadata standard?
ISO metadata is one component of
ISO TC 211Geographic Information / Geomatics
Joint Steering Group onSpatial Standardization and
Related Interoperability
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ISO/TC 211
Framework and reference model
Geospatial models andoperators
Geospatial data admin
Geospatial services
Profiles andstandards
WG 1WG 1
ISO/TC 211ISO/TC 211
1. Reference model
2. Overview
3. Conceptual schema language
4. Terminology
5. Conformance and testing
7. Spatial subschema
8. Temporal subschema
9. Rules for application schema
20. Spatial operators
10. Cataloguing
11. Geodetic reference systems
12. Indirect reference systems
13. Quality
14. Quality evaluation procedures
15. Metadata
16. Positioning services
17. Portrayal of geographic information
18. Encoding
19. Services
6. Profiles Reports
Functional standards Raster and Gridded Data
WG 2WG 2 WG 3WG 3 WG 4WG 4 WG 5WG 5
USA AUS UK NLDNOR
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ISO/TC 211Several CSDGM-traditional elements are defined externally to ISO 19115/10139:
ISO 19103
- measurement (distance, angles, units of measure)
ISO 19109- features, attributes, properties
ISO 19111- vertical datum
………………most are working documents